Oscarbot.WX

It allows to gain remote access to the affected computer.
It awaits remote-control orders to carry out.
It uses stealth techniques to avoid being detected by the user.
It uses anti-monitoring techniques in order to prevent it being detected by antivirus companies.
It spreads
, via IRC.

Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95

First detected on:

May 27, 2009

Detection updated on:

May 27, 2009

Statistics

No

Brief Description

Oscarbot.WX is a backdoor that allows hackers to gain remote access to the affected computer in order to carry out actions that compromise user confidentiality and impede the tasks performed on the computer.

It reduces the security level of the computer:
it awaits remote-control orders received through
IRC.

It uses stealth techniques to avoid being detected by the user:

It injects itself in running processes.

It deletes the original file from which it was run once it is installed on the computer.

It uses several methods in order to avoid detection by antivirus companies:

It terminates its own execution if it detects that it is being executed in a virtual machine environment, such as VMWare or VirtualPC.

Oscarbot.WX uses the following propagation or distribution methods:

Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.

IRC: It sends a copy of itself to all users connected to the channel to which the infected user is connected.

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